Junkers D.I
| Industry | Aerospace, Aircraft manufacturing |
|---|---|
| Founded | 1895 |
| Founder | Hugo Junkers |
| Headquarters | Germany |
| Products | Aircraft, including the Junkers D.I fighter |
The Junkers D.I (factory code J 9) was a German monoplane fighter aircraft developed towards the end of World War I. It holds the distinction of being the first fighter constructed entirely from metal to be put into operational use. The initial prototype, designated the J 7, made its maiden flight on 17 September 1917 and underwent multiple design adjustments during its evaluation phase. Presented to the Idflieg in early 1918, this model earned a contract for three units intended for further testing. After substantial alterations, Junkers rebranded the updated versions as the J 9, which superseded the originally ordered J 7 aircraft.
Although flight assessments revealed that the J 9 did not possess the agility required for front-line fighter roles, it was considered adequate for naval deployment. As a result, an order for twelve units was placed, with deliveries completed by September 1918 to a naval squadron. Following the Armistice, these aircraft were subsequently assigned to operations on the Eastern Front.
Variants
- J 7
- designation for the initial prototype, with one built (three later converted to J 9s)
- J 9
- designation for later prototypes and production variants
- J 9/II
- variant featuring an extended fuselage
- D.I
- formal Idflieg classification
Surviving aircraft
A single original Junkers D.I is preserved and exhibited at the Musée de l'Air et de l'Espace, located at Paris–Le Bourget Airport in France. Additionally, several reproductions have been created, including one displayed at the Militärhistorisches Museum Flugplatz Berlin-Gatow.